Section 2.3 Earthquake Hazards and Safety

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Vocabulary

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Liquefaction: occurs when an earthquake's violent shaking suddenly turns loose, soft soil into liqued mud

Aftershock: an earthquake that occurs after a larger earthquake in the same area

Tsunamis: the water displaced by the quake forms large waves

Base-isolated Building: a building designed to reduce the amount of energy that reaches the building during an earthquake

Outline

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How Earthquakes Cause Damage

• Liquefaction

turns loose soil into liquid mud

• Aftershock

a second earthquake after the first

• Tsunamis

earthquakes on the ocean crust which causes tsunamis to flood cities

Making buildings safer

• choice of location

• solid rock under building